736 Recently published Ornithological Works. [Ibis, 
Hellmayr on d’Orbigny’s South-American Collections. 
[Review of the Birds collected by Alcide d’Orbigny in South 
America. By C. E. Hellmayr. Part I. Nov. Zool. Tring, xxviii. 
1921, pp. 171-213.] 
Alcide d’Orbigny (1802-1857) was a well-known French 
traveller and naturalist in the early part of the last century. 
During the years 1826-1833 he travelled and collected 
extensively on behalf of the French government in the 
south-western part of South America, and transmitted to 
the Paris Museum large numbers of objects of natural 
history. The account of the journeys and collections was 
published in a series of large quarto volumes between 1835 
and 1847, but unfortunately was never completed. He also, 
with the co-operation of his countryman, M. H.deLafresnaye, 
published a preliminary list of the species of birds obtained 
in the ‘ Magasin de Zoologie/ but this, too, remained in¬ 
complete. While most of the birds collected by d’Orbigny 
are to be found in the Paris Museum, some remained in the 
possession of Lafresnaye and have now found their way to 
the Museum of Comparative Zoology in Cambridge, Mass. 
Dr. Hellmayr has now undertaken the difficult task of 
revising and commenting on d’Orbigny’s work, for which 
purpose he made a number of visits to the Paris Museum 
before the war, and in the present paper he gives us the 
first part of the results of his long labours. The present 
instalment deals with the Birds of Prey and a small moiety 
of the Passeres. The original d’Orbigny specimens, many 
of them mounted, are listed and re-identified and compared 
with other examples at Tring and elsewhere. The paper 
is a most important one for all workers on Neotropical 
ornithology. 
Lavauden on the Mediterranean Peregrines. 
[Contribution a l’etude des formes mediterran^ennes du Fau£on 
Pelerin. Par L. Lavauden. Extr. from Rev. Fran^ d’Orn. nos. 145,146, 
1920.] 
M. Lavauden has given us here a careful critical study of 
the various forms of Peregrine found round the Mediter¬ 
ranean. He has made a thorough examination of the 
